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> Independent A/C control on the 2007+ HD Elantras , Not turning on the A/C when the front defrost is on
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This is a simple mod that you can do for free that enables you to turn off the A/C when the defrost mode is set on the HVAC system.



1. The key must be on. I generally have the engine running.

2. Turn on the HVAC on full defrost (not a mix).

3. Hold down the A/C button. As you are holding that down, push the recirc button quickly 5 times. The A/C button light should flash several times.

The A/C light should be on when you restart the car and the defrost either mix or full defrost is activated. Pushing the A/C button will turn off the A/C.

When you disconnect the battery, the A/C will revert to default mode. Redoing the program procedure will be needed to redo the independent A/C modification.

This procedure is also detailed in the owners manual.

Notes regarding Canadian HD models

On models sold in Canada the default mode is the opposite of the US models. By default A/C comes on when defrost is selected. This can be an advantage certain times of the year when humidity is higher but not that helpful on cold dry days. The procedure above works to toggle the "A/C on" versus "A/C off" setting just as it does in US models. No mention is made in the manual that I could find for my 2007.

Last update: May 14 2009, 06:41 AM by Bitmugger    Created: May 7 2009, 02:26 PM by cclngthr    Edits: 5    Views: 1,625
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